Knowledge does want to be free, but its a stretch to say Guardians 3 is a unit of "knowledge". Creative works kinda don't want to be free; Guardians is only desirable because of the cast and crew's work, and you acting out the script is not the same at all. We shouldn't devalue creative labour, even as pirates.
Piracy cuts into the profits of studio investors, and that's good, without impacting how much actors and crew are paid. Win/win.